The Model RDS3 is a compact swing gate design air intake shutoff valve available with electric, pneumatic or mechanical actuation. Actuation of the Model RDS3 closes the valve’s sealing element which shuts off intake air flow into the engine. The RDS3 can be used in fully automatic or manual shutdown systems.

The RDS3 Swing Gate Valve can be used in applications where the air intake line is 3to 4½ inches (76 - 114 mm) in diameter. It can be mounted in vertical or horizontal orientations and airflow through the valve can be in either direction.

To accommodate the installation requirements for the wide variety diesel engine applications, valve attachments are available in several styles including: hose, O-ring, flange, and engine specific attachment.

Electric Actuation
The electrically actuated RDS3 is an energize-to-close valve. It operates using either 12 VDC or 24 VDC power. The valve will automatically reset after the engine stops and power is removed. The electrically actuated RDS3 valve is designed for use in the systems indicated below:

Automatic Electric Overspeed RPM Detection with Manual Override

Manual Electric System

Pneumatic Actuation

The pneumatically actuated RDS3 is designed for mechanical latching in the open position (engine run) and air pressure actuated closure. The pneumatically actuated RDS3 is reset manually. The pneumatically actuated RDS3 valve is designed for use in the systems indicated below:

Automatic Electric Overspeed RPM Detection with Pneumatic Actuation

Manual Electric/Pneumatic System

Manual Pneumatic System

Mechanical Actuation

The mechanically actuated RDS3 can be operated by using either a remote cable pull system or direct operator action on the valve. The mechanically actuated RDS3 is reset manually. The mechanically actuated RDS3 valve is designed for use in the systems below:

Remote Cable Pull Actuated System

Direct Actuated Valve

To help simplify installation Roda Deaco offers a broad array of accessory products and kits to be your single source for complete air intake shutdown systems for your engine. The equipment includes speed switches, speed sensors, toggle switches, valve installation kits, and system actuation kits designed specifically for your engine.

See datasheet for list of accessories.

Installation Kits
Installation kits are available for all valves sold and contain the hardware required to ease the installation of the Air Intake Shutoff Valve into a diesel engine air intake line. Roda Deaco has hundreds of different kits available to ease the installation process. The installation kits are designed to meet specific engine model and application requirements. The kits can range from hose with clamps to custom intake pipes, elbow, flanges, brackets, etc.

Overspeed Sensors and Switches
For automatic systems, engine overspeed sensors and switches are available to monitor and trigger the shutdown of the diesel in the event of an engine runaway condition.

4031 Magnetic Pickup to measure engine RPM

RGR RevGuard Speed Switch

Actuation Kits
Actuation kits contain hardware required to properly install and integrate the specified shutdown system into the diesel engine application. The kits, specific for each type of system and application, can include items such as:

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Overview

If flammable gas or vapor is present in the atmosphere surrounding a diesel engine, it can be ingested into the engine and become an ungoverned fuel supply. This ungoverned fuel can result in runaway engine overspeed, potentially leading to dangerous mechanical failure or an explosion.

The Roda Deaco RDS3 Swing Gate Valve is a compact air intake shutoff valve that provides emergency overspeed shutdown of a diesel engine. The RDS3 Swing Gate Valve can be triggered to close, which starves the engine of air and shuts down the engine.

Operation

The Model RDS3 is a compact swing gate design air intake shutoff valve available with electric, pneumatic or mechanical actuation. Actuation of the Model RDS3 closes the valve’s sealing element which shuts off intake air flow into the engine. The RDS3 can be used in fully automatic or manual shutdown systems.

The RDS3 Swing Gate Valve can be used in applications where the air intake line is 3to 4½ inches (76 - 114 mm) in diameter. It can be mounted in vertical or horizontal orientations and airflow through the valve can be in either direction.

To accommodate the installation requirements for the wide variety diesel engine applications, valve attachments are available in several styles including: hose, O-ring, flange, and engine specific attachment.

Electric Actuation
The electrically actuated RDS3 is an energize-to-close valve. It operates using either 12 VDC or 24 VDC power. The valve will automatically reset after the engine stops and power is removed. The electrically actuated RDS3 valve is designed for use in the systems indicated below:

Automatic Electric Overspeed RPM Detection with Manual Override

Manual Electric System

Pneumatic Actuation

The pneumatically actuated RDS3 is designed for mechanical latching in the open position (engine run) and air pressure actuated closure. The pneumatically actuated RDS3 is reset manually. The pneumatically actuated RDS3 valve is designed for use in the systems indicated below:

Automatic Electric Overspeed RPM Detection with Pneumatic Actuation

Manual Electric/Pneumatic System

Manual Pneumatic System

Mechanical Actuation

The mechanically actuated RDS3 can be operated by using either a remote cable pull system or direct operator action on the valve. The mechanically actuated RDS3 is reset manually. The mechanically actuated RDS3 valve is designed for use in the systems below:

Remote Cable Pull Actuated System

Direct Actuated Valve

Accessories

To help simplify installation Roda Deaco offers a broad array of accessory products and kits to be your single source for complete air intake shutdown systems for your engine. The equipment includes speed switches, speed sensors, toggle switches, valve installation kits, and system actuation kits designed specifically for your engine.

See datasheet for list of accessories.

Installation Kits
Installation kits are available for all valves sold and contain the hardware required to ease the installation of the Air Intake Shutoff Valve into a diesel engine air intake line. Roda Deaco has hundreds of different kits available to ease the installation process. The installation kits are designed to meet specific engine model and application requirements. The kits can range from hose with clamps to custom intake pipes, elbow, flanges, brackets, etc.

Overspeed Sensors and Switches
For automatic systems, engine overspeed sensors and switches are available to monitor and trigger the shutdown of the diesel in the event of an engine runaway condition.

4031 Magnetic Pickup to measure engine RPM

RGR RevGuard Speed Switch

Actuation Kits
Actuation kits contain hardware required to properly install and integrate the specified shutdown system into the diesel engine application. The kits, specific for each type of system and application, can include items such as: